Abstract The rotating detonation characteristics of high-temperature hydrogen-rich gas were studied. Hydrogen-rich was generated by the pre-combustion hydrogen, and a experiment air subsequently performed. auto-initiation observed in experiment, influence pre-detonation tube ignition on steady propagation wave analyzed. results show that have ability to spontaneously form waves. operation has s...

A novel anode material for intermediate temperature solid oxide fuel cells with a composite of LaxSr1-xTiO3 has been synthesized by a sol-gel auto-combustion method. X-ray diffraction (XRD) shows that LaxSr1-xTiO3 has good chemical compatibility with Gd0.2Ce0.8O1.9 electrolyte. The thermal expansion coefficient (TEC) of the as-prepared anode material is similar to that of Gd0.2Ce0.8O1.9. The el...

Can directed technical change be used to combat climate change? We construct new firm-level panel data on auto industry innovation distinguishing between “dirty” (internal combustion engine) and “clean” (e.g. electric and hybrid) patents across 80 countries over several decades. We show that firms tend to innovate relatively more in clean technologies when they face higher tax-inclusive fuel pr...

Abstract The characteristics of auto-ignition in HCCI engines in the presence of charge stratification is studied theoretically using activation energy asymptotics. Some preliminary results on the effects of mixture stratification on the duration of burning and the sensitivity of ignition delay to initial temperature are presented. The analysis accounts for the effects of pressure rise due to p...

It is well known that in recent years magnetic materials have received increased attention due to their properties. For this reason a significant number of patents that were published during the last decade are oriented towards synthesis and study of such materials. The aim of this work is to create and study ferrite nanocrystalline materials with spinel structure, using sol-gel technology with...

“Eventually, as brain imaging is refined, the picture may become as clear and complete as those see-through exhibitions, at auto shows, of the inner workings of the internal combustion engine. At that point it may become obvious to everyone that all we are looking at is a piece of machinery, an analog chemical computer, that processes information from the environment. ‘All,’ since you can look ...

Magnesium ferrite (MgFe2O4) as a core magnetic nanostructure was synthesized via auto combustion method by using grapefruit extract as a biocompatible and cost-effective material. Then flower and star-like PbS were synthesized using thioglycolic acid as a sulfur source without using any chemical template. After that for preparation of magnetic and photocatalyst MgFe2O4-PbS nanocomposites, lead ...

History provides numerous examples of incumbent market leaders being leapfrogged by newcomers that have exploited the opportunities offered by new technologies. In light of the growing number of ecological threats linked to the use of the internal combustion engine, can Chinese auto manufacturers, which are newcomers to the industry, beat out the established Japanese, European, and North Americ...

New HCCI/CAI Combustion Process Development: Methodology for Determination of Relevant Fuel Parameters — To pass the simultaneous emission requirements for near zero pollutant and low CO2 levels, which are the challenges for future powertrains, many research studies are currently carried out over the world on new engine combustion processes, such as controlled auto-ignition (CAITM) for gasoline...

Abstract – Dynamic modeling and identification of an internal combustion engine (ICE) model is presented in this paper. Initially, an analytical model of an internal combustion engine simulated within SIMULINK environment is excited by pseudorandom binary sequence (PRBS) input. This random signals input is chosen to excite the dynamic behavior of the system over a large range of frequencies. Th...